Propane Fume Detector Alarm w/2 Plastic Sensors Solenoid Valve Square Black Bezel Display. Detect propane leaks early and automatically shut off gas supply to prevent personal injury and possible explosions. Features/Specifications 2-5/8 Square Black Display with LEDs Silence/Test Button. Solenoid Valve Adapter. Solenoid Valve Control Button. Automatically Closes Solenoid Valve. 68 dBA Alarm will sound Red LED will light at 20% of the LEL. Simple Installation. 9-30VDC. Operating Temperature 40 F to 185 F 40 C to85 C . Reverse Polarity Protected. Current Draw 12VDC Nominal 55mA / Maximum 780mA. Blower Relay = NONE Fume Type = NONE Generator Shutdown = NONE Sensors Included = NONE Voltage Input Range Volts = NONE